The front section is the actual school.
The left building with the sentinel is the science/experiments/robotics building
The back building with the gun turrets and landing pad is a the Agent training facility
The right building is a indoor pool.
And finally the center dome type building is a Holodome. This building can simulate various other areas from a sunny beach to war zone!

I’ve always kind of had the concept for this school in my head, but now it is visualized~
Instead of clicking buttons on screen to navigate to different locations like in UMCH/CC, in UMAA Maiko will be able to travel to different parts of the school freely from this aerial perspective.